Polarization of Nucleons from theD(γ, p)nReaction at Medium Energies

Abstract

The polarization of nucleons from the $\mathrm{D}(\gamma , p)n$ reaction is investigated under the assumption of tensor coupling in the $n-p$ interaction potential. Electric dipole, electric quadrupole, magnetic dipole, and magnetic quadrupole transitions are taken into consideration. The polarization is estimated for $\hslash \omega =65\mathrm{}$ Mev with the help of recent nucleon-nucleon scattering phase shifts. These estimates indicate the dominant role of the electric dipole and the magnetic dipole transitions from ${}_{}{}^3{}_{}{}^{}S_1^{}{}_{}{}^{}+{}_{}{}^3{}_{}{}^{}D_1^{}{}_{}{}^{}$ ground state to the ${}_{}{}^3{}_{}{}^{}P_0^{}{}_{}{}^{}$, ${}_{}{}^3{}_{}{}^{}P_1^{}{}_{}{}^{}$, ${}_{}{}^3{}_{}{}^{}P_2^{}{}_{}{}^{}$, ${}_{}{}^3{}_{}{}^{}F_2^{}{}_{}{}^{}$, and ${}_{}{}^1{}_{}{}^{}S_0^{}{}_{}{}^{}$ final states. The advantages of the measurement of the polarization are indicated.